Keyword: Radio-frequency identification

Briefs: IoMT

Innovators have developed an RFID-based system for sensing the angular position of rotating systems. The RFID-Based Rotary Position Sensor can be used as a position/orientation sensor or implemented in a...

Briefs: Electronics & Computers
The technology could help in elder care with sensors throughout a home.
Briefs: RF & Microwave Electronics
The reader uses a frequency multiplexer to boost its ability to accurately locate a greater number of RFID tags.
Briefs: Energy
RFID-based devices work in indoor and outdoor lighting conditions and could transmit data for years before they need to be replaced.
Briefs: Robotics, Automation & Control

A system was developed that uses radio-frequency identification (RFID) tags to help robots target moving objects with unprecedented speed and accuracy. The system could enable greater...

Briefs: Sensors/Data Acquisition

Although Radio Frequency Identification (RFID) technology is being used widely for pallet and box-level tracking in the commercial sector, significant technology gaps remain for tracking dense quantities at the item...

Articles: Mechanical & Fluid Systems

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Briefs: Sensors/Data Acquisition
Passive RFID Tag with Long Range and Wide Coverage Capabilities

Researchers at NASA Johnson Space Center have developed the RFID Tag with Long Range and Wide Coverage Capabilities technology that allows a RFID tag to direct a RFID reader beam signal back in the direction of arrival. This technology requires no added power to provide telemetry...

Briefs: Photonics/Optics
Configuration Enables RFID Tags to Work as Sensors

The detection and localization of gas releases, such as methane from leaking natural gas pipelines or nitrogen oxides from failing electrical equipment, require high sensitivity to the target gas and insensitivity to non-target gases. Infrared (IR) absorption spectroscopy gives highly specific...

Articles: Mechanical & Fluid Systems

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Briefs: Photonics/Optics

Laser-induced graphene (LIG) has been used to write graphene patterns onto food and other materials to quickly embed conductive identification tags and sensors into the products...

Briefs: RF & Microwave Electronics

Microsensors are used in many different applications such as the detection of poisonous gases. They are also integrated into miniaturized transmitter/receiver systems such as RFID chips. Since...

Briefs: Test & Measurement
Pressure Sensor Mechanism

The Pressure Sensor Mechanism is designed to measure or monitor tactile pressure. It is based on passive Radio Frequency Identification (RFID) sensor tags and is applicable to a variety of systems. As RFID sensors transmit information wirelessly, they eliminate many challenges associated with traditional wired systems...

Briefs: Communications
Zero-Power Radio Receiver

There are several different types of wireless radio frequency identification (RFID) tags that are truly zero-power radios. Currently, most unpowered wireless RFID tags only have a range of a few meters. There are longrange, low-powered tags that draw energy either from a battery or some other form of localized power. A...

Articles: Sensors/Data Acquisition

The Industrial Internet of Things is predicated on large-scale, distributed sensor/control networks that can run unattended for months to years with very low power consumption. The characteristic...

Briefs: Materials
Microfabricated Particles as MRI Contrast Agents

Magnetic resonance imaging (MRI) has become an invaluable, widely used medical diagnostic and research tool, but despite numerous chemically synthesized image-enhancing agents, MRI still lacks the sensitivity and the multiplexing capabilities of optical imaging that benefit from colored...

Briefs: Sensors/Data Acquisition

For years, radio frequency identification (RFID) technology has been used in a variety of applications, from passports to inventory tracking. Homeland security concerns have heightened the...

Briefs: Communications

Many industrial and commercial plants, government and private research facilities, and industrial facilities perform potentially dangerous processes. Automated warning and alarm systems alert personnel to...

Briefs: Test & Measurement
Decoupled Ranging and Orientation Inversions Enable Linear and Fast Long-Range Non-Line-of-Sight Positioning

The wireless radio positioning or radiolocation problem is of great importance in society today. Existing radiolocation systems such as the Global Positioning System (GPS), Radio-Frequency Identification (RFID) systems, and Ultra...

Briefs: Communications
Wideband Retroreflector

There are many known methods of retransmitting radio wave signals intra-building and inter-building, as well as ground-to-aircraft or ground-to-satellite. Some techniques modulate the reflection coefficient of an antenna. Prior art has used frequency multiplication or field effect transistor (FET) mixing to modulate the...

Briefs: Manufacturing & Prototyping

Carbon fiber (CF) and carbon fiber composites have gained widespread use in recent years due to their unique combination of high strength and...

Briefs: Sensors/Data Acquisition

This technology is a low-cost RFID-based torque and tension sensor for high-performance fasteners, such as bolts, that are used in sophisticated high-tech equipment and systems. It offers...

Briefs: Materials

NASA's Langley Research Center has created a new class of materials based on depositing nanometer-sized metal particles onto carbon allotropes. The method is scalable and relatively...

Briefs: Mechanical & Fluid Systems
RFID Cavity

This technology provides a method for interrogating collections of items with radio-frequency identification (RFID) tags. It increases the read accuracy, meaning that more of the item tags will be successfully read. It also permits smaller tag antennas than would otherwise be necessary.

Briefs: Electronics & Computers

NASA’s Glenn Research Center has developed nanoionic-based radio frequency (RF) switches for use in devices that rely on low-power RF transmissions, such as automotive systems, RFID...

Articles: Aerospace

“Over the years, I’ve asked people, ‘If you had a robot, what would you want it to do for you?’” said Rob Ambrose, principal investigator for NASA’s Game Changing Development Program and chief of the...

Briefs: RF & Microwave Electronics
Low-Power Wireless Body Area Network (WBAN) Communication System

NASA seeks semi-passive, RFIDenabled wearable tags for inventory tracking and astronaut body area network applications. Wearable sensor tags can be printed on astronaut clothing or suits, and are powered by printed thin film batteries and/or via energy harvesting. Energy is...

Briefs: Sensors/Data Acquisition
Wireless Multi-Walled Carbon Nanotube Microwave Heater System Using RFID-Based Temperature Feedback

This innovation has two main parts — a wireless, flexible film heater containing multi-walled carbon nanotubes (MWCNTs) to convert radiated microwave energy into heat, and a radio frequency identification (RFID) temperature sensor to provide...

Briefs: Sensors/Data Acquisition

Radio frequency identification (RFID) tags consist of an antenna and an integrated circuit. The antenna is typically the more costly of the two components, and, by far, the largest. As antenna size...